低黏度环氧树脂高温固化的性能影响  

Curing Temperature on Performance of Low Viscosity Epoxy

作　　者：刘魁 卢敏[2] 冯学斌 唐先贺 

机构地区：[1]时代新材料科技股份有限公司,湖南株洲412007 [2]湖南工业大学包装新材料与技术重点实验室,湖南株洲412007

出　　处：《塑料工业》2012年第1期107-110,共4页China Plastics Industry

基　　金：国家863计划资助项目(编号:2007AA03Z563);湖南省重大科技专项资助项目(编号:No.2009FJ1002)

摘　　要：研究了风电叶片用低黏度环氧树脂在70℃、90℃和110℃固化温度下固化物的性能变化。气相色谱–质谱分析低黏度环氧树脂主要由双酚A环氧树脂和1,4–丁二醇二缩水甘油醚组成,固化剂为多元胺的成分,再通过红外光谱对70℃、90℃和110℃3组样件进行分析,结果显示,随着固化温度升高,固化物中起到体型网络交联的醚键的含量呈下降趋势,同时羰基和亚甲基含量增加,这些都说明在此固化温度区间内,固化温度升高,高分子的交联度呈下降趋势。对环氧浇铸体和玻璃钢样件的力学性能测试显示,从70℃到110℃固化温度升高样件的各项力学性能呈下降趋势。In this paper, curing performance of low viscosity epoxy resin used in wind power blades at temperatures of 70 ℃, 90 ℃ and 110℃was studied. Analysis by gas chromatography-mass spectrometry showed that low viscosity epoxy resin was mainly made up with bisphenol A epoxy resin and 1, 4-butanediol diglycidyl, and curing agent was polyamine-based. Analysis of 3 group samples at 70℃, 90 ℃ and 110℃ by infrared spectroscopy showed that the content of ether linkage which played a role in cured cross-linked net- work decreased with the increase of curing temperature, while the content of carbonyl and methylene increas- ing, These were described in the curing temperature range of curing temperature polymer crosslinking degree of downward trend. Property test on the sample of casting body of epoxy and fiberglass mechanical showed that when curing temperature rose from 70℃ to 110 ℃, the sample＇s mechanical properties got weaker.

关 键 词：风电叶片 环氧树脂 固化温度 性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]